Hi,
***LOG Q0I=> NiPConnect2: 192.168.30.5:3601: connect (10061: WSAECONNREFUSED: Connection refused) [nixxi.cpp 3285]
Could you share dev_rd log file by following SAP KBA 1835162 - SAP Basis System: Operating system call connect failed (error no. 10061) 10061: WSAECONNREFUSED: Connection refused
Regards,
Gaurav